Global Parameters

Air temperature: 20°C
Air pressure: 101325 Pa

X Axis: Frequency
Range: 20Hz - 50Hz
Scale: logarithmic
Resolution: medium

Angle of incidence: 0°
Porous model: Allard and Champoux (1992)
Helmholtz model: Ingard/Allard

Absorber Parameters

• Absorber 1 (Plattenschwinger)
Limp Membrane, 35 Kg/m2
1mm Air
40mm Porous Absorbent, 16000 Pa.s/m2
59mm Air
Rigid backing
• Absorber 2 (Plattenschwinger)
Limp Membrane, 10 Kg/m2
1mm Air
30mm Porous Absorbent, 16000 Pa.s/m2
369mm Air
Rigid backing